Biology A-Level
Polygenic inheritance
What Polygenic inheritance means in Biology A-Level, as defined for OCR.
Definition of Polygenic inheritance
Check what you remember
Read the wording for your board, then hide it and explain Polygenic inheritance in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
Control by many genes, each with a small additive effect, producing a range of phenotypes.
Topics that use Polygenic inheritance
- Patterns of inheritance (OCR A-Level)
Related terms
- Allele frequencies
- Alleles, genotypes and phenotypes
- Autosomal linkage
- Change in allele frequency over generations
- Chi-squared (χ²) test
- continuous variation
- critical value
- Crossing over and independent assortment
Using Polygenic inheritance in the exam
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